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Radium-226 (226 Ra ) is the longest-lived isotope of radium, with a half-life of 1600 years. It is an intermediate product in the decay chain of uranium-238;...

(Ra3N2). All isotopes of radium are radioactive, the most stable isotope being radium-226 with a half-life of 1,600 years. When radium decays, it emits ionizing...

Radium dials are watch, clock and other instrument dials painted with luminous paint containing radium-226 to produce radioluminescence. Radium dials...

The Radium Girls were female factory workers who contracted radiation poisoning from painting radium dials – watch dials and hands with self-luminous paint...

element polonium, 210Po is generated in the decay chain of uranium-238 and radium-226. 210Po is a prominent contaminant in the environment, mostly affecting...

strontium sulfates are larger compounds, and the smaller atoms, such as radium-226 and radium-228, can fit into the empty spaces of the compound and be carried...

tiny particles of uranium or its decay products, such as thorium-230, radium-226 and radon-222, can cause severe health effects, such as cancer of the...

chain of primordial uranium-238 and is the immediate decay product of radium-226. Radon-222 was first observed in 1899, and was identified as an isotope...

enhanced radium-226 concentrations within the water column near shore and up to about 100 kilometres (62 mi) from the shoreline. Radium-226 is a decay...

years for radium-226 (radium's longest-lived isotope), 28.90 years for strontium-90, 10.51 years for barium-133, and 5.75 years for radium-228. All others...

triple-distilled water containing at a minimum 1 microcurie (37 kBq) each of the radium 226 and 228 isotopes. The time of Radithor and radioactive elixirs ended in...

Although radium-223 is naturally formed in trace amounts by the decay of uranium-235, it is generally made artificially, by exposing natural radium-226 to neutrons...

(half-life of 1,600 years). Radium-226 decays by alpha-particle emission, producing radon that collects over samples of radium-226 at a rate of about 1 mm3/day...

Sochocky[failed verification – see discussion] and originally incorporated radium-226. Radium paint was widely used for 40 years on the faces of watches, compasses...

specific radioactivity of radium-226 with a half-life of 1600 years is obtained as a Ra-226 [ Bq/g ] = 1.32 × 10 16 1600 × 226 ≈ 3.7 × 10 10 [ Bq/g ] ....

Services released a study, outlining areas where contamination by radium-226 (Ra-226), as well as emissions of radon-222 (Rn-222), are at or above normal...

products of radium-226. In nature, radium is found in uranium ores in trace amounts as small as a seventh of a gram per ton of uraninite. Radium is not necessary...

older, non-SI unit of radioactivity based on the activity of 1 gram of radium-226. The curie is defined as 3.7×1010 s−1, or 37 GBq. Conversion factors:...

markings, like the one in the photo) are slightly radioactive because of Radium-226 used in their dials. Newer ones, with teal or white paint color, use the...

isotope of radium is 226Ra with a half-life of 1600 years. 226Ra occurs in the decay chain of 238U (often referred to as the radium series). Radium has 34...